From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Trials of intermediate armatures to ensure they are interchangeable with standard armatures in standard carcases.
| Identifier | ExFiles\Box 165\6\ img197 | |
| Date | 4th April 1929 | |
| Contd. -2- EFC2/T4.4.29. It will be necessary for us to make trials of the first intermediate armature of each size in standard carcases to obtain the correct relation of commutator to armature winding to enable these armatures (as also in the case of higher output armatures) to be interchangeable with the standard armatures in the standard carcases. EFC. | ||